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Cheap flights from Phoenix Sky Harbor Intl Airport to Denver from £51

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — DEN
6 Sep — 13 Sep1
1 adult

Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Denver Intl are usually found in February or January, booked 62 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Sky Harbor Intl to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 1 September 2025.

Round-trip from

£116

One-way from

£51

Popular in

June

Cheapest in

February

Average price

£98
United Airlines
  • United Airlines
  • 4/10-6/10
  • Nonstop
  • 3h 48m total
  • Phoenix to Denver
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United Airlines
  • United Airlines
  • 15/10
  • Nonstop
  • 1h 51m total
  • Phoenix to Denver
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Highest demand for flights based on searches. 15% potential increase in price (£16 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from Sky Harbor Intl to Denver

Cheapest flights from Sky Harbor Intl to Denver
Explore the most affordable flight options available from Sky Harbor Intl to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 September 2025.

Sat 4/1006:00PHX - DEN
Nonstop1h 51mUnited Airlines
Mon 6/1021:00DEN - PHX
Nonstop1h 57mUnited Airlines
Deal found 30/8£116
Sat 4/1019:40PHX - DEN
Nonstop1h 45mSouthwest
Mon 6/1007:15DEN - PHX
Nonstop2h 00mSouthwest
Deal found 31/8£130
Fri 14/1117:34PHX - DEN
Nonstop1h 52mUnited Airlines
Mon 17/1119:20DEN - PHX
Nonstop2h 01mUnited Airlines
Deal found 30/8£131
Fri 12/1216:16PHX - DEN
1 stop27h 08mAlaska Airlines
Tue 16/1218:59DEN - PHX
1 stop4h 21mAlaska Airlines
Deal found 31/8£140
Thu 4/1211:42PHX - DEN
1 stop7h 42mAlaska Airlines
Sun 7/1218:59DEN - PHX
1 stop4h 21mAlaska Airlines
Deal found 30/8£146
Fri 12/1216:16PHX - DEN
1 stop27h 08mAlaska Airlines
Mon 15/1218:59DEN - PHX
1 stop4h 21mAlaska Airlines
Deal found 30/8£148
Thu 25/918:45PHX - DEN
Nonstop1h 54mUnited Airlines
Sun 28/909:35DEN - PHX
Nonstop1h 55mUnited Airlines
Deal found 30/8£152
Wed 17/1207:00PHX - DEN
Nonstop1h 53mUnited Airlines
Fri 19/1216:18DEN - PHX
Nonstop2h 01mUnited Airlines
Deal found 31/8£157
Thu 20/1108:01PHX - DEN
1 stop11h 05mAlaska Airlines
Mon 24/1106:00DEN - PHX
1 stop6h 02mAlaska Airlines
Deal found 29/8£158
Tue 11/1111:38PHX - DEN
1 stop7h 28mAlaska Airlines
Tue 18/1107:00DEN - PHX
2 stops9h 00mAlaska Airlines
Deal found 30/8£159
Thu 4/1210:55PHX - DEN
1 stop4h 02mDelta
Sun 7/1219:28DEN - PHX
1 stop5h 03mDelta
Deal found 31/8£160

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sky Harbor Intl to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 1 September 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Denver that are best for you.

Fly from

Sky Harbor Intl

Fly to

Denver

Route

Depart

Return

Price

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Sat 4/10

06:00-08:51

Nonstop1h 51m

Denver Intl

Mon 6/10

21:00-21:57

Nonstop1h 57m

£116

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Wed 12/11

17:37-19:29

Nonstop1h 52m

Denver Intl

Fri 14/11

20:39-22:40

Nonstop2h 01m

£116

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Sat 4/10

19:40-22:25

Nonstop1h 45m

Denver Intl

Mon 6/10

07:15-08:15

Nonstop2h 00m

£130

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 14/11

17:34-19:26

Nonstop1h 52m

Denver Intl

Mon 17/11

19:20-21:21

Nonstop2h 01m

£131

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 12/12

16:16-19:24

1 stop27h 08m

Denver Intl

Tue 16/12

18:59-23:20

1 stop4h 21m

£140

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 4/12

11:42-19:24

1 stop7h 42m

Denver Intl

Sun 7/12

18:59-23:20

1 stop4h 21m

£146

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 12/12

16:16-19:24

1 stop27h 08m

Denver Intl

Mon 15/12

18:59-23:20

1 stop4h 21m

£148

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 25/9

18:45-21:39

Nonstop1h 54m

Denver Intl

Sun 28/9

09:35-10:30

Nonstop1h 55m

£152

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Wed 31/12

11:03-15:14

1 stop4h 11m

Denver Intl

Mon 5/1

18:25-23:54

1 stop5h 29m

£155

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Wed 17/12

07:00-08:53

Nonstop1h 53m

Denver Intl

Fri 19/12

16:18-18:19

Nonstop2h 01m

£157

Flights are sorted by cheapest return flights first.

Deals found on 30/8

Showing 1-10 of 22 results
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Best time to book a flight from Sky Harbor Intl to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Sky Harbor Intl with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Phoenix Sky Harbor Intl Airport to Denver

How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to Denver?

Use this chart to determine the optimal time to book a return flight from Sky Harbor Intl to Denver. Price data was last updated on 29 August 2025.

To ensure you get the cheapest price possible for a flight from Phoenix Sky Harbor Intl Airport to Denver, you should look to book at least 62 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Denver?

Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Denver (average of £667). Flying from Phoenix Sky Harbor Intl Airport to Denver in July is currently the most expensive (average of £985). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHX to DEN?

Find hourly flight availability from Sky Harbor Intl to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 September 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 60% on flights from Phoenix Sky Harbor Intl Airport to Denver by exploring options for tickets in the morning.

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Denver from Phoenix Sky Harbor Intl?

    For a flight from Phoenix Sky Harbor Intl to Denver, you will be flying into Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city. Denver Intl is the only Denver airport and it handles 22 inbound flights from Phoenix Sky Harbor Intl per day. 0 airlines have flights to Denver Intl from Phoenix Sky Harbor Intl on a regular basis.

  • How long is the flight from Phoenix Sky Harbor Intl Airport to Denver?

    There are many flights that can get you from Phoenix Sky Harbor Intl Airport to Denver in 1h 45m. Fly via United Airlines or Southwest to get the fastest option. The distance between Phoenix Sky Harbor Intl Airport and Denver is about 601 mi. All flights are typically direct.

  • What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to Denver?

    Consider Air Canada (74%), Lufthansa (72%) or Copa Airlines (69%) when booking your flight. These represent the most reliable airlines when flying from Phoenix Sky Harbor Intl Airport to Denver.

  • Can I find deals for flights from Sky Harbor Intl to Denver that include hotel bookings?

    Yes. In addition to deals on Sky Harbor Intl to Denver flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sky Harbor Intl to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sky Harbor Intl to Denver.

  • Can I find deals for business class flights from Sky Harbor Intl to Denver?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Denver?

    Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Denver (average of £667). Flying from Phoenix Sky Harbor Intl Airport to Denver in July is currently the most expensive (average of £985). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Winter Park
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Can Cheapflights find flights from Sky Harbor Intl to Denver with no change fees?

Yes, we can. To see specific flights from Sky Harbor Intl to Denver with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Sky Harbor Intl to Denver become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Denver from Sky Harbor Intl today and book when prices fit your budget.

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